Other Games or Ideas?

My friend has grown rather bored of playing Vanguard, for whatever reason, and is in need of new game. We would prefer it be something that we can play together as well. We have played yugioh, MTG, Wixoss, and Vanguard. He won't play other card games.

My question is, do any of you have any game suggestions that would be relatively cheap or free for us to try together? We are in desperate need of something to do and play.

Please, help. Thank you all so much for reading this and sorry if I wasted your time.